('binary' encoding is not supported, stored as-is)
>I've disassembled HP's driver for ScanJet 5s and convert most
>branches (according to TWAIN driver description) to C-code. But there
>is a problem: driver deals with LPT port via DeviceIoControl function
>with some IOCTL codes. All I have is numeric constants, but I need
>description of these command codes and (more important) buffer
>structures for them. Those codes are not described in MSDN. Perhaps,
>they should be in DDK of Windows NT. Can somebody help me to find
>descriptions?
>Thanks in advance.
I have no experience in parallel port rev-eng... but have you used
this pport sniffer?
http://www.sysinternals.com/portmon.htm
If this doesn't work, maybe there is a ``kernel-level driver'' wich is
the piece of software which is really talking to the scanner, and
maybe those are cumstom IOCTL's. So look at
windoze/system32/drivers or windoze/system for any .vxd that were
shipped in the scanner drivers.
Cheers,
Adrian Perez Jorge
<adrianpj@easynews.com>
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